Friction-absorbing device



Vrj Sept 1.4, 1943- w. H. BAsELT 2,329,510

FRIGTION ABsoRBING DEVICE Filed Feb. 19, 1941 2 sheets-sheet 1 INVENTOR.

Sept. 14, 1943. w. H. BASELT 2,329,510

FRIGTIO ABSORBING DEVICE Filed Feb. 19, 1941 Z'Sheets-Shee' 2 fin.. -Z-

Patented Sept. 14, 1943 Walter HI Baselt, Chicago,Ill.,v'x'a`ssignoilfto Amer. ican Steel Foundries, Chicago,l vIll'.,' acorpora Appunti-fm'Fiiaryia 1941, 'Seriana 3711695 28 Claims.`

Myginvention relates to friction absorbing devicesfandfinoreparticularly .to azdevice whereinl "identical Aend followers -and,friction shoes are urged into tight frictional engagement by resilientymeans under compression between said followersandjsaid shoes. inventionincludes a I tion device suitable foruse :in spring `groups haw/f` ingrelatively longspring travel vand presenting surfaces of,. r naximurn`areaon the followersfand thefzshoes for frictional engagement..

4novel d form of fric-K. .y

, adapted tobe associated with relatively movable supportedandsupporting;members` and includes spaced lresilient#elements affordingyrelativelyilong` moment arms-to:resistgoutfoifsquare movement :fofysaid.members; and 5to 1 restoreV them to theirf-` Vgeneralobject ofmyinvention -is to design n suchza yfriction absorbing deVice-whchfmaybelower. andfaffriic'tion surface onjthe otherv follower by .resi/ lientmeans interposed between said shoes andsaid'followers.. j l v Anotherobjectvjof 'my invention is to design suona frictionabsorbing devicewherein each end followerpres'ents spaced friction"surfacesI arrangedsubstantially along 011e diagonal plane andv anQopposedv intermediatefrictiony surface* disposed longf an goppovsit'ely direted diagonalplane." d l .to design f 1 My inventionY .comprehends ,a5l

wherein "a" pluralityv fof.; resilient means;- notv only urgefsetsofirictionelements intov tight f engage` mentbut` also react? againstone of 'saids'etsitoj return ysaid:elements izo-their normal released-{,Figure'l is .ja-side elevation of gnovelfffjric-A-g' y tionabsorbingydevice.; 'i f Figure 2 is arreiid-fe1evationof said theendfollowers usedn-in theydevicefshowngin Figure v1, rFigure `f4.4 beingatop-plan View of said follower,AV Figure AAfbeing ya sideelevationthere; oft; andA EigurefABf'being an end View; thereofb sucheifrictiondeviceA wherein eachv friction'shoe presentsv substantially*all "the 'area' of `one of its faces for 'complementary diagonal faceari'gag'ef.v ment withthe'associated endfollowersf' V' diiferentiobjectof mynvent'ions to devise interlock'ingfm'eaxis for''suclifa devicetore'tainv it'fin` assembly-:and Iaccomplishthifs by affordin'gf@ratfeac'h endl off s aid Adevice'` interengalginfg lowers and fintermediate said ends other', 4inter engagngmeans betweei'each shoeiandthe other y of said followers.

1 Av speciflcobject ofk myinvention is'toldesign A a friction absorbingydevice wherein opposed-"identical end' followers presentopposing.'alternately'- arrangedfdiagonal friction `surfaces .forvcomplementary yengagement with horizontally extend-v ing friction shoeswhich are urgedlintqtightfenf gagement with saidfollowers by spacedresilientv means having abutment with said shoes landsaid followers. c yj f y l .Myainyention contemplates Va friqtion device n and the'lgslsjlmaybe perforatedfasat.2,A lf2 to, afford f iconvenient Vgneans forsecuringsaid followers between-tworelatively movable. mem-` vFigures 5,5A and 5B vshow details of affricffV `tionshoe used in thedeviceshownlin' Figure l1*,v Figure 5,being 1aside' -View thereof,'Figure 5A beinga jtop -viewl ofsthe 'shoe shown inA Figure15,

and' .Figurey 15B being.. an

My novel friction absorbing` devicev 4generati/lily indi-cated at-Yigrnay-l beg-of #generallyl rectangular forni.Van.cl-includesidenticalnend ffollowers4, 4.. l Eehgeris'ffellower 4 -rcomprises a ebase .Plaie .6 presenting axsubstantially flat outer facey8. andv havingdon `opposite I.longitudinal edges centralouitvszar-filly'pljojectingrlugs Il),y l0.- The.basei5.

berssuch'as a bolster and asidefrainetn lO nop,

positelsides of eachnlug' l0 vthe edges ofs aidvbase y.arearQuately-formed as -at.ll4',|.4 tojafford a con?.

"f 'vementand-xcompactarrapgement Whenssaid' .d6-

- vice is aissociatediwith a bolster supporting Aspring,A groupedltill-beunderstood, of course, thatvthe ayv'befsecuredtiwespeciive tot andY bottom`V s prngfplates or L Caps: so` that the spring group.andffriction device.will act andxmay be handled-asa uniti.;` l '.Alongonesigde'of each base B and: adjacent to .itsjgendsjmay-beifonnedupstanding. pedestals or frictionewallsgl 6, 1l-6. presenting downwardlyand inwardly directed diagonallyv .arranged :friction surface platea- 6and inte immediate thetend-l pedestalsl, [6 'mayfbe .formedan.upstandi-ngentral pedesf..

y device and n. .Figure 3 is atop-planlviewthereofl-f 1.,5; Figures 4,4A and 4B show in detail one of vwith said tal or friction wall 20presenting an opposed downwardly and inwardly directed diagonal frictionsurface 22. When the followers 4, 4 are assembled in operative positioneach central pedestal 20 is accommodated between the spaced endpedestals I6, I'6 on the other follower, and the friction surfaces I8,I8 and 22 on respective followers are arranged in opposed relationship.It maisr also be noted that in assembly the diagonal friction surfacesIi8, I8 and 22, 22 on said followers are alternately arranged orinterleavedwith each other, and that the diagonal Afriction surface 22on each central pedestal 2t' is 05x36 sitely directed with respect tothe adjacent diag onal friction surfaces I8, I8 on the e'r'idfpds'-Utals I'6, I6 of the other follower.

Extending horizontally and centrally of said device are friction shoes24, 24,- each having said wall 66 being relieved as at 68 beneath theretaining lug 56 for frictional wear of the surface 22; On its oppositeside the central pedestal is reinforced by spaced vertical ribs 10, 1U.Adjacentto the base 6 the end pedestals I6, I6 and the central pedestal20 maybe undercut or relieved as at 12, 12 and 14 respectively for wearof the respective friction surfaces and also to afford space' forlateral expansion of the resilient members 36, 36 when the device iscompressed.

g Smooth radii are afforded at 16, 16 at the re- Y vci theresiiie'ritmembers.

adjacent to its ends diagonal friction faces 26,

26 in complementary engagement as at 28, 28

with the' friction surfacesrlai. Icon n'e" f said' relievers. iIntermediate its Ve'rii's earch frictions shezl is formdiwitii cppcsteiydirected .dis'z afgenai friction ffaic sur ici. ccmpiementaiyrfacefengagement as at 32` with tiiei frictit'mf-surface' 221:-,

*Iiiteipcseti5 Between' sami slices '24.124 d seated mebutmeiititiiereegairistes at 311,34` are th spacedrsili'r'itnenibrs'f36 which ma" Ue' positioned thereon as at 38, 38.Each 'resilient member' 36 may beic'rmed ef any suitable res'il:l ientmaterial such as rubber compositionaii'is afforded tapering end portionsasiat 4U, 40 seated in' 'abutment as at 42; 42 against the ii'ire'i"Siiifaces of the bases 6, 6. On-ea'clieiidis aecss" 4 '3 which;accommodates' a lug' `ful ich theier surface ci the bese t` fdr'tidsiticiiirig tetia resilient. menier sectas. y .A vi fenet'teacrifiicticfi snee Vzilfmetv ce ritcnea 'er ie". "ed as at it te iiit'eieekas'l at' 4s with a'iug '5o'- feime'aadgeceht te tiiufre emiK cf eeentiedesti le; Intermediate itseiics each shc'e isiietche erfiecess'ed aset 52 te 'aire-rd iriterietiiieg .engagement as at 5'4 with e messefermeiiiadieceiit te the' mev end ef'tiiecentrer pedestal 2U ori `theother fllwei. 'iiitrlk iengag'eiets atI 48'; 48 and 5 4, 54 offsaidshsfollowers retain said defe -ii s'efrik.'I'heletails of. one'of thefriction shoes are shownin Figures 5,15A and 5B, wherein it may benotednthat eachfriction shoe 24 is of generally ractangularrformpresenting on one face e accommodatesnthe lug iiiiuon lvcentral pedestalthe resilient meinbeisg "As loadisapplied o the fpu'cwe'rs andthe trie"u members urging the 'frittiV neit tienei ler;gtgeiiieiitivfithtri ettion surfaces on'th"I fol'lv'verelative vertical moi/'ement ff that saidresilient r'nibeis formation inetwovdirections during i meet ef thefeiicweis.A Asien is re1eased, res'iii'eiit members return theicucweisgtcgtheir normal-released position'. i

1t' iste beiiiidefe'teea that; ii'cfeettvisii tete. limited bi* theyexact .embodiment fthe device, shown which is merely by way ofillustrati'ojand.

mentary` engagement; with ,said friction lsurfaces;

and resilientffmeans: 'abutting said followers` and 2. Ina'frictionabsrbing'devicaendlfollowers eaclif presenting opposedfrictionsurfaces alternately arranged with:` friction *.surfac'eshon "the otherfollower, Ifriction yshoes.; each. having Y.alternately arrangedfriction faces Yfor.complementary engagement with vcertain ofsaidlsurfaceson each follower, and -r'esilientf means compressed betweensaidshoes.

3. In a friction device,

friction kmembers :each

f' presentirng corresponding surfaces on the other member .and

an intermediate friction face between thesur-'i faces on the .othermember, :friction elementsV each having complementary engagementwith:

said members, and a plurality of resilientmeansi compressed betweensaid' members and *said ,ele-

4. Ina friction A presenting spaced friction surfaces opposed .toscorresponding surfaces on .the yother member: and an intermediatefriction face betweengtheiv surfaces Ion the othermember, frictionelements Ydevice,; friction' members Veach each having complementary'engagement with. v

the friction surfaces on' one membert and the. frictionface on the otherJmember, anda-plus,`

rality of resilient means compressedlbetween said members and 'saidelements.

5.'In a friction absorbing device, end followers each presentingfriction surfaces opposed to surfaces on the other follower, frictionelements sociatedv friction elements. f,

13. In an energy absorbing lopposeclferldr followerspresenting,interleaved frictionI surfacesffriction elementseach engaging certainof said surfaces o-n each follower, and resilient` meanscompressed by.andgbetween said follow'- ers and said elements forurgingthem into tightengagement,.. v

14. In a friction device, a1 follower member having. spaced pedestalspresenting friction surfaces Yforgengag'ementgwith ranfas'sociatedfriction aelement, and an intermediate pedestal presentingan'opposedfriction surface forengagement with =;anotherVV associatedfriction element.,

15. A `friction element of rectangular-shape presenting spaced diagonalfriction surfaces for engagement with ,an associated member, andan eachengaging certain of said surfaces, resilient intermediate oppositelydirected diagonal friction surface for engagement with anotherassociated friction member.

16. In a friction absorbing device, a plurality of followers comprisinginterlaced friction surfaces, friction shoes in engagement therewith,

and resilient means under compression between said shoes, each shoefrictionally engaging at leastone surface on each follower.

tion face for engagement with another associated' friction shoe. l

7. In a friction absorbing device, end followers f each presentingvspaced friction surfaces and an opposed intermediate friction surface,friction shoes having friction faces engaging the spaced frictionsurfacesonA one follower andthe intermediate friction surface on theother follower, and resilient means abutting said shoes.

8. In a friction absorbing device, endfollowers each presenting spaceddiagonal frictionsurfaces and an opposed intermediate oppositelydirected diagonal friction surface, friction shoes each vhavingcomplementary face engagement f with certainv of said surfaces on eachfollower, and resilient meansfabutting said followers and said shoes. 1n v .j

9. In a friction absorbing device, end follow.- ers with interlacedwalls presenting'oppositely directed alternately 7arranged kdiagonalfriction surfaces, friction elements each having diagonal friction facesin complementary engagementr withv certain of the surfaces on eachfollower, and resilient means abutting said followers and said elements.

10. In a friction device, opposed end members interlaced frictionsurfaces, members each having friction faces engaging` certain surfaceson eachk of said end members, and a resilient element compressed by andbetween allor saidymembers for urging them into tight engagement.

l1. A friction element presenting spaced friction surfaces forengagement with an associated memberand an intermediate opposed frictionface for engagement with another associated member, and means onsaidsurfaces 'and said face for interlocking with the respective members.

12. A friction follower comprising a base having end friction membersand an intermediate friction member laterally spaced therefrom, andmeans on saidend members and said intermeside 17; In a frictionabsorbing device, a plurality of followers comprising alternatelyarranged and interposed friction surfaces, friction shoes in engagement'therewith, and' resilient means under compression between said shoes,each shoe frictionally engaging a surface on one follower and aplurality of spaced surfaces on the other follower.

- v18. In a friction absorbing device, a plurality` of followerscomprising interlaced friction sur-V faces, friction shoes in engagementtherewith, andresilient means under compression between said shoes, eachshoe frictionally engaging on one side thereof at least one surface oneach follower. I v

19. In a friction absorbing device, a plurality of followers eachcomprising spaced diagonally arranged Yfriction surfaces andanoppositely directed diagonal friction face, said face being receivedbetween the spaced surfaces on the other follower, friction shoes eachin engagement with the face on one follower and the surfaces on theother, and resilient means compressed between said shoes.

20. In a friction absorbing device, a plurality of followers eachcomprising spaced friction surfaces and an opposed friction face, saidface being received between the spaced surfaces on the.

other follower, friction shoes each in engagement with the face on onefollower and the surfaces onthe other, and resilient means compressedbetween said shoes.

21. In a friction absorbing' device, a plurality of followers eachcomprisingspaced friction sur-' faces and an opposed vintermediatefriction surface, friction shoes in engagement with respecl'pressio'n byand between said followers andsaid tiveusurfaces, and resilient meanscompressed between said shoes. f

22. In a friction absorbing device, a plurality of followers'eachcomprising spaced friction surfaces and an opposed friction face,friction shoes` in engagement with respective surfaces andrespectivefaces, and resilient means under comshoes.l

23. In a friction absorbing device, a plurality .of followers comprisinginterleaved oppositely `directed diagonal friction surfaces, shoesinendiate. member forinterlocking with re'spectivle@asr;

i ment with respective faces, and resilient andrsaid fo1 1o\iver"s;4 l ni a 24.In a friction absorbirigfoiesfieegv a plurality O if'l'dti 'Shs'achfcmpr'ising spaced diagonally' arranged Vfriction faces and anintermediate oppositely'drected diagonal friction face, followerscomprising friction surfaces kin engagemeans compressed betweenrespective shoes.

2,5.r In a vfriction absorbing deiice a. pair o'f followers comprisinglongitudinally l overlapping friction elerr`1'ents', friction shoeseacl'i frictionally` enga-ging a side of at least Oneelfnent 0n eachfollower, and resilient means urging said shoes into Said engagement.

26.7In a friction absorbing device, a pair of followers eaencomprisingfriction element-stionf gitudinally overlappingv friction elements onthe otherffriction shoes each frictonally engaging on oneside thereof aside of at least one element' on each follower, and resilient meansurging said .shoes'into said engagement.

27. A friction element vof generally rectangular form presenting on oneface thereof spaced.

friction" surfaces for engagement with an kassociate'd member and anintermediate friction sur--v face for engagement with another associatedmember. Y

28; A friction elementV ofy generally rectangu-y IarShape presenting onone face thereof spaced diagonal friction surfaces. for engagement withanl associated member andan intermediate oppositely directed diagonalfriction surface for engagement lwith another associated member.

' WALTER H.'BASELT

